EP4042952A1 - Laparoscopic clipping machine for application of surgical clips on tissue structures - Google Patents
Laparoscopic clipping machine for application of surgical clips on tissue structures Download PDFInfo
- Publication number
- EP4042952A1 EP4042952A1 EP22154607.0A EP22154607A EP4042952A1 EP 4042952 A1 EP4042952 A1 EP 4042952A1 EP 22154607 A EP22154607 A EP 22154607A EP 4042952 A1 EP4042952 A1 EP 4042952A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- trigger lever
- initial position
- clipping machine
- jaws
- stop element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000008859 change Effects 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 210000002435 tendon Anatomy 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 238000001356 surgical procedure Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000012636 effector Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
- A61B17/1285—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B17/2909—Handles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0042—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00477—Coupling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2901—Details of shaft
- A61B2017/2902—Details of shaft characterized by features of the actuating rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B17/2909—Handles
- A61B2017/2912—Handles transmission of forces to actuating rod or piston
- A61B2017/2919—Handles transmission of forces to actuating rod or piston details of linkages or pivot points
- A61B2017/292—Handles transmission of forces to actuating rod or piston details of linkages or pivot points connection of actuating rod to handle, e.g. ball end in recess
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2932—Transmission of forces to jaw members
- A61B2017/2933—Transmission of forces to jaw members camming or guiding means
- A61B2017/2936—Pins in guiding slots
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2946—Locking means
Definitions
- the subject of the invention is the laparoscopic clipping machine adapted for application of different sizes of clamps - surgical clips, on tissue structures.
- endoscopic surgical clipping machines where the end effector for clip application is a moving jaw that opens and closes.
- State of the art clipping machines for clips application on tissue structures comprises two main elements: the handgrip equipped with a movable trigger lever and the endoscopic part - the stem, usually in the form of a tube terminated by an effector in the form of a pair of movable jaws.
- the movable jaws are mounted at the end of the stem, and the movement triggering mechanism of the jaws comprises at least one pusher or tendon, usually axially positioned within the stem, which is moved by a trigger mechanism.
- the trigger mechanism usually comprises a trigger lever, by the movement of which the pusher moves and the jaws close.
- Spring located in the handgrip causes the triggering lever to return to its initial position and the jaws to open.
- the mechanism that causes the movement of the jaws between the two positions - initial open and closed - does not allow the size of the clips to be changed to larger or smaller as the jaws move within a fixed range of opening, which means that a particular clipping machine is only suitable for one type of clip.
- several clipping machines are required instead of one.
- EP3560442A1 there is a laparoscopic clipping machine known having a stem, a handgrip, a trigger lever and a mechanism which transmits the movement of the trigger lever to the jaws through a pusher located in the stem of the clipping machine, wherein the jaws are coupled to the trigger lever so that when the jaws are clamped, the pusher is pushed.
- the jaws of the disclosed clipping machine are provided with catches between which a clip is inserted, the clip being clamped by tightening the trigger lever against the handle, wherein the clipping machine is provided with a lever mechanism for moving the tendon.
- the object of the invention is a laparoscopic clipping machine with a simple design, which provides the possibility to quickly change the initial spacing of the jaws and therefore to change the initial spacing of the catches, in order to adapt the clipping machine to accommodate different size clips, thereby reducing the duration of the surgical procedure.
- the subject matter of the invention is the laparoscopic clipping machine for applying of surgical clips to tissue structures comprising a handgrip, a stem integrated into the handgrip, jaws mounted at the end of the stem, a trigger lever pivotally mounted relative to the handgrip, a tendon assembly providing a movable coupling between the trigger lever and the jaws, wherein said tendon assembly extends along the longitudinal axis of the stem, wherein for the initial position of the trigger lever the jaws are in an initially open position.
- the clipping machine is characterized in that it is provided with a mechanism for changing the initial position of the trigger lever, which comprises a first stop element and a second stop element which are adjustable, wherein the trigger lever is provided with a third stop element which is in contact with the first stop element or the second stop element when the jaws are in the initial position.
- the clipping machine is characterised in that the mechanism for changing the initial position of the trigger lever comprises an initial position change knob of the trigger lever, which is provided with a first stop surface comprising a first stop element and a second stop surface comprising a second stop element.
- the first stop face and the second stop face may be located perpendicular to the longitudinal axis of the stem.
- the clipping machine is characterised in that the initial position change knob of the trigger lever is in the form of a ring, the inner cylindrical surface of which is positioned on a body integrated with the handgrip.
- the trigger lever initial position change mechanism may be provided with a latch to lock the position of the initial position change knob of the trigger lever.
- the latch may be in the form of a ball catch, wherein the initial position change knob of the trigger lever may have recesses for the latch made on the inner cylindrical surface.
- the initial position change knob of the trigger lever can be provided with an indicator to indicating the selected initial jaw spacing.
- the clipping machine is characterised in that the third stop element is a cylindrical stop surface.
- the third stop element may be a stop pin or a screw element located on the trigger lever.
- the clipping machine is characterised in that the rotary joint of the trigger lever and the third stop element are located on opposite sides of the longitudinal axis of the stem.
- the clipping machine is characterized in that the trigger lever is provided with a pulling joint pin located between the trigger lever rotary joint and the third stop element, the pulling joint being coupled to the tendon assembly.
- An advantage of the laparoscopic clipping machine according to the invention is that the provided knob for changing the initial spacing of the jaws, in addition to its primary function, acts as an indicator for the jaw spacing selection and, furthermore, enables audible and tactile recognition of the execution of the spacing selection action.
- the operator can control the change in jaw spacing visually, aurally and tactually.
- a simple knob is used to change the spacing of the jaws, which is a very ergonomic solution.
- the operator has one knob to change the angle position of the jaws and right next to it a knob to change the initial position of the trigger lever, and by coupling with the jaws, said knob is used to change the initial spacing of the jaws.
- the simplicity of the mechanism ensures intuitive adjustment of the knob, and recognition of the expected knob position is obvious. The simplicity guarantees constant precision and durability of the tool.
- the laparoscopic clipping machine comprises a handgrip 1, a trigger lever 2, a stem 3, a angular position change mechanism 4 of the jaws, jaws 5 and a tendon assembly 6.
- the clipping machine is provided with a mechanism for changing the initial position 7 of the trigger lever 2.
- the trigger lever 2 is rotatably mounted on a rotary joint 8 of the trigger lever 2 arranged in the handgrip 1 ( Fig. 2a ).
- Jaws 5 are pivotally mounted on a joint 9 at the distal end of stem 3, wherein the jaws 5 are moved by means of a tendon assembly 6 ( Figs. 2a , 2b ).
- the tendon assembly 6 comprises a distal tip 10 at the side of the jaws 5, tendon 11 and a proximal tip 12 at the side of the handgrip 1.
- Tendon assembly 6 is designed to move along the longitudinal axis k of the stem 3, which may be the geometrical axis of both the stem 3 and the tendon 11.
- the distal tip 10 is connected to the tendon 11 by means of a thread.
- the proximal tip 12 is also connected to the tendon 11 by means of a thread.
- the tendon assembly 6 movably couples the jaws 5 to the trigger lever 2, wherein the trigger mechanism 15 comprises the trigger lever 2, the slide 16, the spring 23 and the tendon assembly 6.
- the proximal end 12 of the tendon assembly 6 is provided with a head 13, which is moved by the trigger lever 2 by means of the slide 16, rotation of the trigger lever 2 towards the handgrip 1 causes the jaws 5 to clamp.
- the jaws 5 are provided with catches 5A and 5B in which the clip tips are inserted.
- the jaws 5 are provided with openings 5C and 5D in which a bolt 14 attached to the further end 10 moves, the movement of the bolt 14 causing the jaws 5 to rotate.
- the slider 16 of the trigger mechanism 15 moves in the opening 17 of the body 18 solidly connected to the handgrip 1 and forming an integral part of the handgrip 1.
- the slider 16 is provided with a first opening 19 having an axis perpendicular to the longitudinal axis k of the stem 3. Inside the opening 19 a head 13 is positioned, wherein the opening 19 is open on the side of the tendon assembly 6.
- the head 13 along with the opening 19 forms a joint 20 of the proximal end 12 of the tendon 11.
- a second opening 21 is provided, in which the pin 2A of the trigger lever 2 is located, wherein the pin 2A may have a cylindrical shape with an axis m perpendicular to the longitudinal axis k of the stem, the second opening 21 may have a rectangular cross-section.
- the second opening 21 together with the pin 2A forms the pulling joint 22. Any other shape of the pulling joint 22 is possible.
- the movement of the pivotally mounted trigger lever 2 through the pulling joint 22 forces the linear movement of the slider 16 and the tendon assembly 6 according to the longitudinal axis k.
- the trigger mechanism 15 is provided with a spring 23, which is a compression spring and is mounted in the body 18 so that it forces the movement of the slider 16 in the direction to the jaws 5.
- the hand-derived pressure on the trigger lever 2 causes the movement of the slider 16 and the compression of the spring 23, the release of the pressure causes the trigger lever 2 to return to its initial position under the action of the spring 23.
- Initial position change mechanism 7 of the trigger lever 2, together with the tendon assembly 6, comprises an initial spacing change mechanism 25 of the jaws 5.
- the initial spacing of the jaws 5, i.e. the distance between the catches 5A and 5B, is directly related to the change of the initial position of the trigger lever 2.
- the initial position change mechanism 7 of the trigger lever 2 is provided with an initial position change knob 26 of the trigger lever 2, i.e. it is simultaneously an initial spacing change knob of the jaws 5.
- Initial position change knob 26 of the trigger lever 2 is in the form of a ring having an inner cylindrical surface 26K rotatably mounted on the cylindrical surface 18A of the body 18 of the handgrip 1.
- the initial position change knob 26 of the trigger lever 2 may be provided with a first stop element and a second stop element, which are adjustable so as to support the trigger lever, i.e. to determine the initial position of the trigger lever 2.
- the stop elements of the initial position change knob 26 of the trigger lever 2 may be of any form, for example they may be stop bolts.
- the third stop element located on the trigger lever 2 may be of any form.
- the first stop element 26A has the form of a stop surface 26A and the second stop element 26B has the form of a second stop surface 26B (also shown in Figs.
- the third stop surface 2B has the form of a convex surface, wherein the convexity is directed towards the jaws 5.
- the third stop surface 2B may be in the form of a cylindrical surface, the third stop surface 2B may be in the form of any protrusion on the trigger lever 2 on the stem 3 side.
- a stop bolt pressed into the trigger lever 2 or an element screwed into the trigger lever 2 may be used.
- the third stop surface 2B on the trigger lever 2 may be pressed against the first stop surface 26A or the second stop surface 26B on the initial position change knob 26 of the trigger lever 2 under the action of the spring 23.
- the support of the trigger lever 2 against the first stop surface 26A is adapted to open the jaws 5 to set to an opening suitable for the size L clips ( Figs. 2a and 3a ).
- the support of the trigger lever 2 against the second stop surface 26B ensures the maximum pivoting of the trigger lever 2 and is adapted to open the jaws 5 to set to an opening suitable for size XL clips ( Figs. 2b and 3b ).
- the distance indicated as d in Fig. 3a between the first stop surface 26A and the second stop surface 26B in a direction parallel to the longitudinal axis k enables to obtain two different initial positions of the trigger lever 2, wherein the repositioning of the stop surface 26A and 26B is carried out by rotating the knob 26.
- the initial position change knob 26 of the trigger lever 2 has an intermediate surface 26C connecting the first stop surface 26A and the second stop surface 26B, which provides a smooth transition between these surfaces.
- the knob 26 is provided with an indicator 26L, which indicates the selected one of the possible spacings of the jaws 5 i.e. spacing L or XL, the indicator 26L can be positioned in front of one of the descriptions L or XL on the handgrip 1 when the knob 26 is locked as shown in Figures 3a and 3b .
- the indicator 26L is in the form of a rounded finger adjacent the cylindrical surface 18A of the body 18.
- the axial position of the initial position change knob 26 of the trigger lever 2 is fixed by means of a flange 26G, which is resting on the groove 1A of the handgrip 1 and is located along the longitudinal axis k of the stem 3 by a nut 27.
- the initial position change mechanism 7 of the trigger lever 2 is provided with a latch 28 having a latching element 29 in the form of a ball, which is arranged to lock the knob 26. For the spacing L, the latching element 29 slides into the recess 26E, and for the spacing XL, the latching element 29 slides into the recess 26F.
- the trigger mechanism 15 is designed so that the tightening of the lever 2 against the handgrip 1 creates movement of the tendon assembly 6 in a direction towards the handgrip 1.
- the rotary joint 8 of the trigger lever 2 and the third stop surface 2B of the trigger lever 2 are located on opposite sides with respect to the longitudinal axis k of the stem 3 and on opposite sides of the pulling joint 22. Furthermore, the gripping part 2G of the trigger lever 2 and the rotary joint 8 of the trigger lever 2 are similarly located on opposite sides with respect to the longitudinal axis k of the stem 3 and the pulling joint 22.
- the clipping machine is provided with angular position change mechanism 4 of the jaws 5, which comprises a sleeve 31 and an angular position change knob 32 of the jaws 5.
- the stem 3 is fixedly connected to the sleeve 31, which remains in contact and rotates with the inner track of the bearing 33. Rotation of the angular position change knob 32 of the jaws 5 causes rotation of the stem 3 and the jaws 5 fixed thereon.
- the trigger lever 2 and the jaws 5 are in their initial position, wherein in Fig. 2a the third stop surface 2B on the trigger lever 2 rests against the first stop surface 26A on the knob 26 and the spacing of the jaws 5 is adapted for size L clips, the indicator 26L of the knob 26 indicates the selected size L ( Fig. 3a ), respectively, whereas in Fig. 2b the knob 26 is rotated so that the indicator 26L shows the selected size XL ( Fig. 3b ), the third stop surface 2B of the trigger lever 2 rests against the second stop surface 26B on the knob 26, and the spacing of the jaws 5 is adapted for size XL clips.
- Fig. 4 shows the clipping machine in the position as when the clip is clamped, the trigger lever 2 is tightened to the maximum level against the handgrip 1.
- the change in the spacing of the jaws 5 is carried out by gripping the handle 1 and the trigger lever 2, wherein the trigger lever 2 and the handle 1 must be tightened slightly so as to rotate the trigger lever 2 towards the handgrip 1, which will cause the jaws 5 to close. Then, with the other hand or thumb, it is necessary to turn the initial position change knob 26 of the trigger lever 2 changing the initial spacing of the jaws 5 into a position according to the size of the L or XL clips used, the 26L indicator being set in front of one of the L or XL descriptions on the body 18.
- the setting of the knob 26 in one of the possible positions is accompanied by an audible locking of the latch 28 in one of the recesses 26E or 26F, wherein the locking of the latch 28 can be felt with the hand, since the latching causes minimal vibration of the handle and the knob.
- the operator of the clipping machine according to the invention therefore, has a threefold confirmation of having made a change in the setting of the initial opening of the jaws of the clipping machine.
- the angular position change mechanism 4 of the jaws 5 is independent of the initial spacing change mechanism 25 of the jaws 5.
- the angular position change mechanism 4 of the jaws 5 may be provided with a latching element.
Abstract
Laparoscopic clipping machine for application of surgical clips to tissue structures, comprising handgrip, stem integrated in the handgrip, jaws mounted at the end of the stem, trigger lever pivotally mounted with respect to the handgrip, tendon assembly providing a movable coupling between the trigger lever and the jaws, wherein said tendon assembly extends along the longitudinal axis of the stem, wherein for the initial position of the trigger lever the jaws are in an initially open position, characterised in that it is provided with initial position change mechanism (7) of the trigger lever (2), which comprises a first stop element (26A) and a second stop element (26B) which are adjustable, wherein the trigger lever (2) is provided with a third stop element (2B), which is in contact with the first stop element (26A) or the second stop element (26B), when the jaws (5) are in the initial position.
Description
- The subject of the invention is the laparoscopic clipping machine adapted for application of different sizes of clamps - surgical clips, on tissue structures.
- In surgical practice, endoscopic surgical clipping machines are used, where the end effector for clip application is a moving jaw that opens and closes. State of the art clipping machines for clips application on tissue structures comprises two main elements:
the handgrip equipped with a movable trigger lever and the endoscopic part - the stem, usually in the form of a tube terminated by an effector in the form of a pair of movable jaws. The movable jaws are mounted at the end of the stem, and the movement triggering mechanism of the jaws comprises at least one pusher or tendon, usually axially positioned within the stem, which is moved by a trigger mechanism. The trigger mechanism usually comprises a trigger lever, by the movement of which the pusher moves and the jaws close. Spring located in the handgrip causes the triggering lever to return to its initial position and the jaws to open. The mechanism that causes the movement of the jaws between the two positions - initial open and closed - does not allow the size of the clips to be changed to larger or smaller as the jaws move within a fixed range of opening, which means that a particular clipping machine is only suitable for one type of clip. Thus, in the case of a surgical procedure where clips of different sizes are needed, several clipping machines are required instead of one. - From the description of the invention
EP3560442A1 , there is a laparoscopic clipping machine known having a stem, a handgrip, a trigger lever and a mechanism which transmits the movement of the trigger lever to the jaws through a pusher located in the stem of the clipping machine, wherein the jaws are coupled to the trigger lever so that when the jaws are clamped, the pusher is pushed. The jaws of the disclosed clipping machine are provided with catches between which a clip is inserted, the clip being clamped by tightening the trigger lever against the handle, wherein the clipping machine is provided with a lever mechanism for moving the tendon. - Due to the frequent need to apply different sized clips during a single surgical procedure, clipping machines that provide the ability to apply different sized clips are in demand. Since many different dedicated laparoscopic instruments may be needed during surgery, there is an expectation that new laparoscopic instruments should be simple, intuitive to use and ergonomic. Due to the multiple actions required during surgery, including the need for different clip sizes, there is a demand that the initial jaw opening can be changed without changing the instrument, and that the performance of the clipping machine is repetitive regardless of the size of the clip used.
- The object of the invention is a laparoscopic clipping machine with a simple design, which provides the possibility to quickly change the initial spacing of the jaws and therefore to change the initial spacing of the catches, in order to adapt the clipping machine to accommodate different size clips, thereby reducing the duration of the surgical procedure.
- The subject matter of the invention is the laparoscopic clipping machine for applying of surgical clips to tissue structures comprising a handgrip, a stem integrated into the handgrip, jaws mounted at the end of the stem, a trigger lever pivotally mounted relative to the handgrip, a tendon assembly providing a movable coupling between the trigger lever and the jaws, wherein said tendon assembly extends along the longitudinal axis of the stem, wherein for the initial position of the trigger lever the jaws are in an initially open position. The clipping machine is characterized in that it is provided with a mechanism for changing the initial position of the trigger lever, which comprises a first stop element and a second stop element which are adjustable, wherein the trigger lever is provided with a third stop element which is in contact with the first stop element or the second stop element when the jaws are in the initial position.
- The clipping machine is characterised in that the mechanism for changing the initial position of the trigger lever comprises an initial position change knob of the trigger lever, which is provided with a first stop surface comprising a first stop element and a second stop surface comprising a second stop element.
- The first stop face and the second stop face may be located perpendicular to the longitudinal axis of the stem.
- The clipping machine is characterised in that the initial position change knob of the trigger lever is in the form of a ring, the inner cylindrical surface of which is positioned on a body integrated with the handgrip.
- The trigger lever initial position change mechanism may be provided with a latch to lock the position of the initial position change knob of the trigger lever.
- The latch may be in the form of a ball catch, wherein the initial position change knob of the trigger lever may have recesses for the latch made on the inner cylindrical surface.
- The initial position change knob of the trigger lever can be provided with an indicator to indicating the selected initial jaw spacing.
- The clipping machine is characterised in that the third stop element is a cylindrical stop surface.
- The third stop element may be a stop pin or a screw element located on the trigger lever.
- The clipping machine is characterised in that the rotary joint of the trigger lever and the third stop element are located on opposite sides of the longitudinal axis of the stem.
- The clipping machine is characterized in that the trigger lever is provided with a pulling joint pin located between the trigger lever rotary joint and the third stop element, the pulling joint being coupled to the tendon assembly.
- An advantage of the laparoscopic clipping machine according to the invention is that the provided knob for changing the initial spacing of the jaws, in addition to its primary function, acts as an indicator for the jaw spacing selection and, furthermore, enables audible and tactile recognition of the execution of the spacing selection action. Thus, the operator can control the change in jaw spacing visually, aurally and tactually.
- A simple knob is used to change the spacing of the jaws, which is a very ergonomic solution. The operator has one knob to change the angle position of the jaws and right next to it a knob to change the initial position of the trigger lever, and by coupling with the jaws, said knob is used to change the initial spacing of the jaws. The simplicity of the mechanism ensures intuitive adjustment of the knob, and recognition of the expected knob position is obvious. The simplicity guarantees constant precision and durability of the tool.
- The object of the invention is described in more detail with reference to the embodiment shown in the figure, in which:
-
Fig. 1 shows a perspective view of the laparoscopic clipping machine, -
Figs. 2a ,3a shows the clipping machine having mechanisms in the initial position for the smaller clip, -
Figs. 2b ,3b shows the clipping machine having the mechanisms in the initial position for the larger clip, and -
Fig. 4 shows the clipping machine in the position after the trigger lever has been tightened. - The laparoscopic clipping machine comprises a
handgrip 1, atrigger lever 2, astem 3, a angularposition change mechanism 4 of the jaws,jaws 5 and atendon assembly 6. The clipping machine is provided with a mechanism for changing theinitial position 7 of thetrigger lever 2. Thetrigger lever 2 is rotatably mounted on arotary joint 8 of thetrigger lever 2 arranged in the handgrip 1 (Fig. 2a ).Jaws 5 are pivotally mounted on ajoint 9 at the distal end ofstem 3, wherein thejaws 5 are moved by means of a tendon assembly 6 (Figs. 2a ,2b ). Thetendon assembly 6 comprises adistal tip 10 at the side of thejaws 5,tendon 11 and aproximal tip 12 at the side of thehandgrip 1.Tendon assembly 6 is designed to move along the longitudinal axis k of thestem 3, which may be the geometrical axis of both thestem 3 and thetendon 11. - The
distal tip 10 is connected to thetendon 11 by means of a thread. Theproximal tip 12 is also connected to thetendon 11 by means of a thread. Thetendon assembly 6 movably couples thejaws 5 to thetrigger lever 2, wherein thetrigger mechanism 15 comprises thetrigger lever 2, theslide 16, thespring 23 and thetendon assembly 6. Theproximal end 12 of thetendon assembly 6 is provided with ahead 13, which is moved by thetrigger lever 2 by means of theslide 16, rotation of thetrigger lever 2 towards thehandgrip 1 causes thejaws 5 to clamp. Thejaws 5 are provided withcatches jaws 5 are provided withopenings 5C and 5D in which abolt 14 attached to thefurther end 10 moves, the movement of thebolt 14 causing thejaws 5 to rotate. - The
slider 16 of thetrigger mechanism 15 moves in theopening 17 of thebody 18 solidly connected to thehandgrip 1 and forming an integral part of thehandgrip 1. Theslider 16 is provided with afirst opening 19 having an axis perpendicular to the longitudinal axis k of thestem 3. Inside the opening 19 ahead 13 is positioned, wherein theopening 19 is open on the side of thetendon assembly 6. Thehead 13 along with the opening 19 forms ajoint 20 of theproximal end 12 of thetendon 11. In addition, inside theslider 16, asecond opening 21 is provided, in which thepin 2A of thetrigger lever 2 is located, wherein thepin 2A may have a cylindrical shape with an axis m perpendicular to the longitudinal axis k of the stem, thesecond opening 21 may have a rectangular cross-section. The second opening 21 together with thepin 2A forms the pullingjoint 22. Any other shape of the pullingjoint 22 is possible. The movement of the pivotally mountedtrigger lever 2 through the pullingjoint 22 forces the linear movement of theslider 16 and thetendon assembly 6 according to the longitudinal axis k. Thetrigger mechanism 15 is provided with aspring 23, which is a compression spring and is mounted in thebody 18 so that it forces the movement of theslider 16 in the direction to thejaws 5. The hand-derived pressure on thetrigger lever 2 causes the movement of theslider 16 and the compression of thespring 23, the release of the pressure causes thetrigger lever 2 to return to its initial position under the action of thespring 23. - Initial
position change mechanism 7 of thetrigger lever 2, together with thetendon assembly 6, comprises an initialspacing change mechanism 25 of thejaws 5. The initial spacing of thejaws 5, i.e. the distance between thecatches trigger lever 2. The initialposition change mechanism 7 of thetrigger lever 2 is provided with an initialposition change knob 26 of thetrigger lever 2, i.e. it is simultaneously an initial spacing change knob of thejaws 5. Initialposition change knob 26 of thetrigger lever 2 is in the form of a ring having an innercylindrical surface 26K rotatably mounted on thecylindrical surface 18A of thebody 18 of thehandgrip 1. The initialposition change knob 26 of thetrigger lever 2 may be provided with a first stop element and a second stop element, which are adjustable so as to support the trigger lever, i.e. to determine the initial position of thetrigger lever 2. The stop elements of the initialposition change knob 26 of thetrigger lever 2 may be of any form, for example they may be stop bolts. The third stop element located on thetrigger lever 2 may be of any form. In the embodiment of the initialposition change knob 26 of thetrigger lever 2 shown, thefirst stop element 26A has the form of astop surface 26A and thesecond stop element 26B has the form of asecond stop surface 26B (also shown inFigs. 3a and 3b ), while thethird stop surface 2B has the form of a convex surface, wherein the convexity is directed towards thejaws 5. Thethird stop surface 2B may be in the form of a cylindrical surface, thethird stop surface 2B may be in the form of any protrusion on thetrigger lever 2 on thestem 3 side. For example, a stop bolt pressed into thetrigger lever 2 or an element screwed into thetrigger lever 2 may be used. In the initial position of thetrigger lever 2, thethird stop surface 2B on thetrigger lever 2 may be pressed against thefirst stop surface 26A or thesecond stop surface 26B on the initialposition change knob 26 of thetrigger lever 2 under the action of thespring 23. In the embodiment shown, the support of thetrigger lever 2 against thefirst stop surface 26A is adapted to open thejaws 5 to set to an opening suitable for the size L clips (Figs. 2a and3a ). The support of thetrigger lever 2 against thesecond stop surface 26B ensures the maximum pivoting of thetrigger lever 2 and is adapted to open thejaws 5 to set to an opening suitable for size XL clips (Figs. 2b and3b ). The distance indicated as d inFig. 3a between thefirst stop surface 26A and thesecond stop surface 26B in a direction parallel to the longitudinal axis k enables to obtain two different initial positions of thetrigger lever 2, wherein the repositioning of thestop surface knob 26. Furthermore, the initialposition change knob 26 of thetrigger lever 2 has anintermediate surface 26C connecting thefirst stop surface 26A and thesecond stop surface 26B, which provides a smooth transition between these surfaces. Theknob 26 is provided with anindicator 26L, which indicates the selected one of the possible spacings of thejaws 5 i.e. spacing L or XL, theindicator 26L can be positioned in front of one of the descriptions L or XL on thehandgrip 1 when theknob 26 is locked as shown inFigures 3a and 3b . Theindicator 26L is in the form of a rounded finger adjacent thecylindrical surface 18A of thebody 18. The axial position of the initialposition change knob 26 of thetrigger lever 2 is fixed by means of aflange 26G, which is resting on the groove 1A of thehandgrip 1 and is located along the longitudinal axis k of thestem 3 by anut 27. The initialposition change mechanism 7 of thetrigger lever 2 is provided with alatch 28 having a latchingelement 29 in the form of a ball, which is arranged to lock theknob 26. For the spacing L, the latchingelement 29 slides into therecess 26E, and for the spacing XL, the latchingelement 29 slides into therecess 26F. - The
trigger mechanism 15 is designed so that the tightening of thelever 2 against thehandgrip 1 creates movement of thetendon assembly 6 in a direction towards thehandgrip 1. Therotary joint 8 of thetrigger lever 2 and thethird stop surface 2B of thetrigger lever 2 are located on opposite sides with respect to the longitudinal axis k of thestem 3 and on opposite sides of the pulling joint 22. Furthermore, thegripping part 2G of thetrigger lever 2 and therotary joint 8 of thetrigger lever 2 are similarly located on opposite sides with respect to the longitudinal axis k of thestem 3 and the pulling joint 22. - The clipping machine is provided with angular
position change mechanism 4 of thejaws 5, which comprises asleeve 31 and an angularposition change knob 32 of thejaws 5. Thestem 3 is fixedly connected to thesleeve 31, which remains in contact and rotates with the inner track of thebearing 33. Rotation of the angularposition change knob 32 of thejaws 5 causes rotation of thestem 3 and thejaws 5 fixed thereon. - As shown in
Figs. 2a and2b as well as inFigs. 3a and 3b , thetrigger lever 2 and thejaws 5 are in their initial position, wherein inFig. 2a thethird stop surface 2B on thetrigger lever 2 rests against thefirst stop surface 26A on theknob 26 and the spacing of thejaws 5 is adapted for size L clips, theindicator 26L of theknob 26 indicates the selected size L (Fig. 3a ), respectively, whereas inFig. 2b theknob 26 is rotated so that theindicator 26L shows the selected size XL (Fig. 3b ), thethird stop surface 2B of thetrigger lever 2 rests against thesecond stop surface 26B on theknob 26, and the spacing of thejaws 5 is adapted for size XL clips. -
Fig. 4 shows the clipping machine in the position as when the clip is clamped, thetrigger lever 2 is tightened to the maximum level against thehandgrip 1. - The change in the spacing of the
jaws 5 is carried out by gripping thehandle 1 and thetrigger lever 2, wherein thetrigger lever 2 and thehandle 1 must be tightened slightly so as to rotate thetrigger lever 2 towards thehandgrip 1, which will cause thejaws 5 to close. Then, with the other hand or thumb, it is necessary to turn the initialposition change knob 26 of thetrigger lever 2 changing the initial spacing of thejaws 5 into a position according to the size of the L or XL clips used, the 26L indicator being set in front of one of the L or XL descriptions on thebody 18. The setting of theknob 26 in one of the possible positions is accompanied by an audible locking of thelatch 28 in one of therecesses latch 28 can be felt with the hand, since the latching causes minimal vibration of the handle and the knob. The operator of the clipping machine according to the invention, therefore, has a threefold confirmation of having made a change in the setting of the initial opening of the jaws of the clipping machine. - The angular
position change mechanism 4 of thejaws 5 is independent of the initialspacing change mechanism 25 of thejaws 5. The angularposition change mechanism 4 of thejaws 5 may be provided with a latching element.
Claims (12)
- Laparoscopic clipping machine for application of surgical clips to tissue structures, comprising- handgrip,- stem integrated in the handgrip,- jaws mounted at the end of the stem,- trigger lever pivotally mounted with respect to the handgrip,- tendon assembly providing a movable coupling between the trigger lever and the jaws,wherein said tendon assembly extends along the longitudinal axis of the stem,wherein for the initial position of the trigger lever the jaws are in an initially open position,characterised in thatit is provided with initial position change mechanism (7) of the trigger lever (2), which comprises a first stop element (26A) and a second stop element (26B) which are adjustable, wherein the trigger lever (2) is provided with a third stop element (2B), which is in contact with the first stop element (26A) or the second stop element (26B), when the jaws (5) are in the initial position.
- The clipping machine according to claim 1, characterised in that, initial position change mechanism (7) of the trigger lever (2), comprises initial position change knob (26) of the trigger lever (2), which is provided with a first stop surface comprising a first stop element (26A) and a second stop surface comprising a second stop element (26B).
- The clipping machine according to claim 2, characterised in that, first stop face (26A) and the second stop face (26B) may be located perpendicular to the longitudinal axis (k) of the stem (3).
- The clipping machine according to claim 2 or 3, characterised in that, initial position change knob (26) of the trigger lever (2), is in the form of a ring, the inner cylindrical surface (26K) of which is positioned on a body (18) integrated with the handgrip (1).
- The clipping machine according to claim 2 or 4, characterised in that, initial position change mechanism (7) of the trigger lever (2) is provided with a latch (28) to lock the position of the initial position change knob (26) of the trigger lever (2).
- The clipping machine according to claim 5, characterised in that, the latch (28) is in the form of a ball latch.
- The clipping machine according to claim 4 or 6, characterised in that, initial position change knob (26) of the trigger lever (2) has recesses (26E, 26F) for the latch (28) made on the inner cylindrical surface (26K).
- The clipping machine according to claim 4 or 7, characterised in that, initial position change knob (26) of the trigger lever (2) is provided with an indicator (26L) for indicating which initial jaw spacing (5) is selected.
- The clipping machine according to claim 1 or 8, characterised in that, the third stop element (2B) is a cylindrical stop surface.
- The clipping machine according to claim 1 or 8, characterised in that, the third stop element (2B) is a stop bolt or a screw element located on the trigger lever (2).
- The clipping machine according to any one of the preceding claims, characterised in that, the rotary joint (8) of the trigger lever (2) and the third stop element (2B) are located on opposite sides of the longitudinal axis (k) of the stem (3).
- The clipping machine according to any one of the preceding claims, characterised in that, the trigger lever (2) is provided with a pulling joint (22) pin (2A) located between the trigger lever (2) rotary joint (8) and the third stop element (2B), wherein the pulling joint (22) being coupled to the tendon assembly (6).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL436918A PL242226B1 (en) | 2021-02-10 | 2021-02-10 | Laparoscopic clipper for placing surgical clips on tissue structures |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4042952A1 true EP4042952A1 (en) | 2022-08-17 |
Family
ID=80119449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22154607.0A Withdrawn EP4042952A1 (en) | 2021-02-10 | 2022-02-01 | Laparoscopic clipping machine for application of surgical clips on tissue structures |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4042952A1 (en) |
CN (1) | CN114903564A (en) |
PL (1) | PL242226B1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3518993A (en) * | 1967-05-01 | 1970-07-07 | American Hospital Supply Corp | Surgical clip applicator |
US5769857A (en) * | 1996-06-11 | 1998-06-23 | Mgf Group Inc. | Ligating clip applier |
US20160106434A1 (en) * | 2014-10-20 | 2016-04-21 | Joseph W. Blake, III | Multi-clip applier |
WO2018027788A1 (en) * | 2016-08-11 | 2018-02-15 | Covidien Lp | Endoscopic surgical clip applier and clip applying systems |
US20190053808A1 (en) * | 2017-08-15 | 2019-02-21 | Covidien Lp | Endoscopic reposable surgical clip applier |
EP3560442A1 (en) | 2018-04-25 | 2019-10-30 | Covidien LP | Surgical clip applier |
EP3718488A1 (en) * | 2019-04-18 | 2020-10-07 | "Konmex" Spólka Z Ograniczona Odpowiedzialnoscia | Laparoscopic clipping machine for application of surgical clips on tissue structures |
-
2021
- 2021-02-10 PL PL436918A patent/PL242226B1/en unknown
-
2022
- 2022-02-01 EP EP22154607.0A patent/EP4042952A1/en not_active Withdrawn
- 2022-02-09 CN CN202210122515.3A patent/CN114903564A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3518993A (en) * | 1967-05-01 | 1970-07-07 | American Hospital Supply Corp | Surgical clip applicator |
US5769857A (en) * | 1996-06-11 | 1998-06-23 | Mgf Group Inc. | Ligating clip applier |
US20160106434A1 (en) * | 2014-10-20 | 2016-04-21 | Joseph W. Blake, III | Multi-clip applier |
WO2018027788A1 (en) * | 2016-08-11 | 2018-02-15 | Covidien Lp | Endoscopic surgical clip applier and clip applying systems |
US20190053808A1 (en) * | 2017-08-15 | 2019-02-21 | Covidien Lp | Endoscopic reposable surgical clip applier |
EP3560442A1 (en) | 2018-04-25 | 2019-10-30 | Covidien LP | Surgical clip applier |
EP3718488A1 (en) * | 2019-04-18 | 2020-10-07 | "Konmex" Spólka Z Ograniczona Odpowiedzialnoscia | Laparoscopic clipping machine for application of surgical clips on tissue structures |
Also Published As
Publication number | Publication date |
---|---|
CN114903564A (en) | 2022-08-16 |
PL436918A1 (en) | 2022-08-16 |
PL242226B1 (en) | 2023-01-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6280458B1 (en) | Surgical grasping and holding forceps | |
US8080004B2 (en) | Laparoscopic surgical instrument | |
US5176702A (en) | Ratchet locking mechanism for surgical instruments | |
US4483562A (en) | Locking flexible shaft device with live distal end attachment | |
US5308357A (en) | Handle mechanism for manual instruments | |
US4258716A (en) | Microsurgical instruments | |
US6270508B1 (en) | End effector and instrument for endoscopic and general surgery needle control | |
US5893877A (en) | Surgical instrument with offset handle | |
US5358508A (en) | Laparoscopic device | |
EP0555104B1 (en) | Endoscopic surgical instruments having rotatable end effectors | |
US10531881B2 (en) | Target apparatus for aligning a surgical drilling instrument | |
GB2140735A (en) | Forceps having a handle and an exchangeable forceps insert | |
EP1750599B9 (en) | Grip element for a surgical instrument | |
JP2007533415A5 (en) | ||
WO2009046490A1 (en) | Control system for a grasping instrument | |
US4788976A (en) | Universally adjustable blade | |
JP2020526282A (en) | Suture placement device and method | |
US6299624B1 (en) | Handle for a medical instrument | |
EP4042952A1 (en) | Laparoscopic clipping machine for application of surgical clips on tissue structures | |
US11083450B2 (en) | Laparoscopic device | |
US7217274B2 (en) | Injector with finger ring | |
WO2017212040A1 (en) | A laparoscopic device | |
JP2020527392A (en) | Suture placement device and method | |
CN218356348U (en) | Orthopedic alignment restorer | |
US6921263B1 (en) | Adjustable dental instrument having a multi-detent latch |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20230218 |